Device tear down videos are as common practice as device boxings however, tear down videos serve a greater good. That of course being, should you ever happen to need to fix your device or replace parts, you can do so with a visual guide for reference. The folks over at Directfix have taken apart a BlackBerry Bold 9900 for us all, though -- we hope you never need to make use of it. But either way, good to know it's there should you ever need it.